No. 2301. NEW SPECIE8 OF MU8C0ID FLIES— T0WN8END. 587 



half eye length. Four postsuturals ; three sternopleurals, postin- 

 traalars, preacrostichals, postacrostichals, and lateral scutellars; 

 small nondecussate apical scutellar pair. First vein bristled to tip, 

 third halfway to tip, fifth one-fourth way to hind crossvein. Apical 

 cell narrowly open in tip. Hind crossvein a little nearer to small 

 crossvein. No median marginals on first segment, but a pair on 

 second ; marginal row on third and anal segments. 



TRICHOTOPTERYX TROPICA, new species. 



Length, 6.5 mm. One male, Uruhuasi, Peru, 6,500 feet, February 

 3, 1910, on flowers of Baccharis (C. H. T. Townsend). 



Head dull rufo-fulvous, thinly gray pollinose. Parafrontalia and 

 antennae blackish; frontalia brown. Palpi rufous. Thorax and 

 scutellum. blackish, very thinly gray polhnose; humeri and pleura 

 more thickly poUinose; four indistinct narrow thoracic vittae. 

 Abdomen and hind femora fulvous-yellow; anal segment, greater 

 part of third segment, and median vitta on second segment rufous to 

 brown; darker posteriorly. Front and middle femora and tibiae and 

 hind tibiae obscurely fulvous to rufous; tarsi blackish. Wings 

 lightly smoky-yellowish; more so costally. Tegulae obscure fulvous. 



Type.— C&t. No. 22211, U.S.N.M. 



Tribe GERMARimi. 

 INCAMYIOPSIS, new genus. 



Genotype. — Incamyiopsis imitatrix, new species. 



Clypeus well sunken. Epistoma short, well warped. Facialia 

 strongly cihate two-thirds way. Proboscis about head height; palpi 

 stout and clubbed. Third antennal joint of female about two and 

 one-half times second. Arista thickened nearly to the sharply 

 pointed tip; basal joints short. Eyes rather thickly pilose. Female 

 vertex nearly one-half head width. Three frontals below base of 

 antennae. Two procHnate and two recHnate fronto-orbitals in 

 female ; the hind one in each case divaricate. Ocellars strongly divar- 

 icate-proclinate. Parafacialia bare, fully half as wide as clypeus. 

 Cheeks over half eye length. Two postintraalars, postsutm-als, pre- 

 acrostichals, and postacrostichals; three sternopleurals and lateral 

 scutellars; microscopic apical pair of scutellars. Costal spine very 

 strong. Third vein bristled only at base; others bare. Apical cell 

 closed well before tip. Hind crossvein nearer to cubitus. No median 

 marginals on first segment ; median marginal and median discal pairs 

 on second; marginal row and median discal pan- on third; weak 

 marginal and submarginal and stronger discal rows on anal segment. 



INCAMYIOPSIS IMITATRIX, new species. 



Length, 4.5 mm. One female, Oroya, Peru, 12,000 feet, March 6, 

 1913, on herbage (C. H. T. Townsend). 



